Citigroup has been tapped to advise Dubai's main industrial free zone operator on its options for meeting a $2 billion Islamic bond maturity this year, including the potential sale of its UK based developer Gazeley, three sources said on Monday.

Bahrain Telecommunications (Batelco) is eyeing a sale and lease back deal for its tower assets in Bahrain and Jordan, a banking source familiar with the matter said, in a move that would raise funds for potential acquisitions.